class TestCurrencyConverter(unittest.TestCase):
# set up tests
def setUp(self):
self.currency_a = currency.Currency(500, "USD")
self.currency_b = currency.Currency(7, "GBP")
self.currency_c = currency.Currency(10, "KRW")
self.currency_d = currency.Currency(2100, "JPY")
self.curr_converter = CurrencyConverter({
'USD': 1.0,
'EUR': 0.74,
'JPY': 120,
"KRW": 1132,
"GBP": 0.80
})
self.other_curr_converter = CurrencyConverter({
"USD": 1.0,
"EUR": 0.74
})
# test string method
def test_currency_converter_str(self):
self.assertEqual(self.curr_converter.__str__(),
"We will convert any currency that we know")
def test_currency_converter_eq(self):
self.assertTrue(self.curr_converter.__eq__(self.curr_converter))
def test_currency_converter_not_eq(self):
self.assertFalse(self.curr_converter.__eq__(self.other_curr_converter))
def test_currency_converter_convert_same_code(self):
self.assertEqual(self.curr_converter.convert(self.currency_a, "USD"),
self.currency_a)
def test_currency_converter_convert_rate_grtr_thn_1(self):
self.assertEqual(self.curr_converter.convert(self.currency_d, "KRW"),
currency.Currency(2377200.00, "KRW"))
def test_currency_converter_convert_rate_lss_thn_1(self):
self.assertEqual(self.curr_converter.convert(self.currency_c, "EUR"),
currency.Currency(13.51, "EUR"))
def test_currency_converter_unknown_currency_error(self):
with self.assertRaises(UnknownCurrencyCodeError):
self.curr_converter.convert(self.currency_b, "AUD")
